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PC (polycarbonate)/ABS (acrylonitrile butadiene styrene) composition with excellent heat conductivity and preparation method thereof

A technology of composition and thermal conductivity, which is applied in the field of PC/ABS composition with excellent thermal conductivity and its preparation, can solve the problems of a large number of thermal conductive fillers and low thermal conductivity, and achieve high thermal conductivity and improved thermal conductivity

Inactive Publication Date: 2018-06-08
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat conduction material formed in this way needs to add a large amount of heat conduction filler, and the heat conduction efficiency is low

Method used

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  • PC (polycarbonate)/ABS (acrylonitrile butadiene styrene) composition with excellent heat conductivity and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of preparation method of PC / ABS composition with excellent thermal conductivity, adopts the following steps:

[0034] (1) Weigh each component by weight: PC is PC-1220: 60, ABS8434: 30, boron nitride: 8, CNT: 2, antioxidant 1010 0.1, antioxidant 168 0.1, lubricant PETS 0.3 .

[0035] (2) Boron nitride and CNT are pre-mixed and then mixed with other raw materials evenly, then fed from the feeding port of the extruder, and melted and extruded at 220-260 °C, the screw extruder speed is 500rpm, and the pressure is 2MPa , after melt extrusion and granulation, the product can be obtained.

Embodiment 2

[0037] A kind of preparation method of PC / ABS composition with excellent thermal conductivity, adopts the following steps:

[0038] (1) Weigh each component by weight: PC is L1250Y: 80, ABS8434: 10, CNT: 2, boron nitride: 8, antioxidant 1010 0.1, antioxidant 168 0.1, lubricant PETS 0.3.

[0039] (2) Boron nitride and CNT are pre-mixed with other raw materials and fed from the extruder, melted and extruded at 220-260 °C, the screw extruder speed is 500rpm, the pressure is 2MPa, after Melt extrusion and granulation to get the product.

Embodiment 3

[0041] A kind of preparation method of PC / ABS composition with excellent thermal conductivity, adopts the following steps:

[0042] (1) Weigh each component by weight: PC is PC-1220: 70, ABS8434: 30, boron nitride: 8, CNT: 2, antioxidant 1010 0.1, antioxidant 168 0.1, lubricant PETS 0.3 .

[0043] (2) Boron nitride and CNT are pre-mixed with other raw materials and fed from the extruder, melted and extruded at 220-260 °C, the screw extruder speed is 500rpm, the pressure is 2MPa, after Melt extrusion and granulation to get the product

[0044] Each comparative example and embodiment was injection-molded into a flat plate of 100*80*3mm, and tested by a DRL-3 thermal conductivity tester of Xiangke, the results are as follows:

[0045]

[0046] It can be seen from the table that when no thermal conductive filler is added, the thermal conductivity of PC / ABS is about 0.2W / mk (both PC and ABS are 0.2-0.25). When 10 parts of cubic boron nitride is added to PC / ABS, the mate...

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Abstract

The invention relates to a PC (polycarbonate) / ABS (acrylonitrile butadiene styrene) composition with excellent heat conductivity and a preparation method thereof. The PC / ABS composition is prepared from the following components in parts by weight: 50 to 80 parts of PC resin, 10 to 40 parts of ABS copolymer, 5 to 10 parts of heat conduction filler, 0.1 to 1 part of antioxidant, and 0.1 to 1 part oflubricant. A preparation method of alloy comprises the following steps of mixing the components, feeding via a main feeding port of a double-screw extruder, blending and granulating, melting and extruding, and granulating, so as to obtain the PC / ABS composition with excellent heat conduction property. Compared with the prior art, the PC / ABS composition has the advantages that under the synergistic heat conduction function of carbon nanotube and boron nitride, the heat conduction efficiency of the material is obviously improved, and the heat conduction coefficient of the material is greatly increased.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a PC / ABS composition with excellent thermal conductivity and a preparation method thereof. Background technique [0002] PC / ABS alloy has excellent mechanical properties and insulation properties, and is widely used in automobiles, home appliances, digital products and other fields. Household appliances or office equipment shells made of PC / ABS will generate a lot of heat under long-term working conditions. If the heat is not dissipated for a long time, it will not only cause deformation of the material, but also affect the service life; some materials around the car engine use PC / ABS , because its heat is difficult to dissipate, it will greatly affect the service life of the equipment. With the increasing popularity of new energy vehicles, for some auto parts that work near high voltage, the heat dissipation is extremely Crucial, so researching a PC / ABS with high thermal conduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08K13/04C08K7/24C08K3/38C08K5/134C08K5/526C09K5/14
CPCC08L69/00C08K2003/385C08K2201/003C08K2201/016C08L2205/03C09K5/14C08L55/02C08K13/04C08K7/24C08K3/38C08K5/1345C08K5/526
Inventor 刘辉辉李强罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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